It is still under discussion the old bus station should be replaced with a modern hotel or not.
A. whether
B. when
C. which
D. where
网友回答
(答案→)A. whether
B. when
C. which
D. where
解析:考查主语从句。It为形式主语,真正的主语是后面的从句,从句中不缺成分,排除BCD,使用连接词whether。也可以根据whether...or not的固定搭配解题。句意,那个旧车站是否要为一个现代旅馆所取代还在讨论中。